Sodium borohydride → HCID 10155327, compound

HRID 252768Notes

Reaction equation

HRID 252768 reaction equation
[NH2:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[NH:8][C:9](=[O:27])[C:10]1[CH:15]=[CH:14][C:13]([CH:16]=[C:17]2[CH2:25][C:24]3[C:19](=[CH:20][CH:21]=[CH:22][CH:23]=3)[C:18]2=[O:26])=[CH:12][CH:11]=1.[BH4-].[Na+]>CO.O>[NH2:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[NH:8][C:9](=[O:27])[C:10]1[CH:15]=[CH:14][C:13]([CH2:16][CH:17]2[CH2:25][C:24]3[C:19](=[CH:20][CH:21]=[CH:22][CH:23]=3)[CH:18]2[OH:26])=[CH:12][CH:11]=1

Participants

5

Reactant 2

HCID 4311764Sodium borohydrideHCID 66893950HCID 66893950, compound

Product 1

HCID 10155327HCID 10155327, compoundYield 74%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 962WaterSolvent2×

Conditions

Temperature
50 °C

Procedure

To a suspension of 274 (300 mg, 0.85 mmol) in MeOH (8 ml) and water (1 ml) was added NaBH4 (75 mg, 1.95 mmol). The reaction mixture was stirred at 50° C. 16 h and cooled down. Water was added to the solution and the precipitated was filtered and rinsed with cold water to afford the title compound 275 (224 mg, 74%) as a white solid. 1H NMR: (acetone) δ (ppm): 9.05 (bs, 1H), 8.00 (dd, J=8.2, 2.7 Hz, 2H), 7.47 (d, J=8.5 Hz, 1H), 7.43 (d, J=8.2 Hz, 1H), 7.38-7.30 (m, 2H), 7.22-7.12 (m, 3H), 7.01 (ddd, J=7.6, 7.6, 1.5 Hz, 1H), 6.87 (dd, J=8.0, 1.1 Hz, 1H), 6.68 (dd, J=7.6, 7.6 Hz, 1H), 4.98 (t, J=5.8 Hz, 0.4H), 4.89 (t, J=6.7 Hz, 0.6H), 4.63 (bs, 2H), 4.45 (d, J=6.9 Hz, 0.6H), 4.06 (d, J=6.0 Hz, 0.4H), 3.30-3.19 (m, 1H), 2.88-2.48 (m, 3H, CH2). LRMS: 358.2 (calc.); 359.1 (found).

Workup

  1. temperature16 h and cooled down
  2. filtrationthe precipitated was filtered
  3. washrinsed with cold water

Sources & evidence

ORD record
ord-acd0af90a03a41a4a7ea4cbde1f55d0f
Source dataset
uspto-grants-2011_01
Patent number
US07868204B2

Reaction notes

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